1. Introduction
As the world accelerates its transition to renewable energy, the photovoltaic (PV) industry continues to grow rapidly. While PV panel efficiency is critical, the structural reliability and durability of mounting systems are equally important.
Within this ecosystem, solar fasteners serve as the backbone of PV mounting systems, providing secure connections and structural support. Among them, solar hanger bolts—used extensively in rooftop and ground-mounted systems—are gaining significant attention due to their high strength, corrosion resistance, and flexible installation.
According to MarketsandMarkets, the global solar fastener market was valued at approximately $3.4 billion in 2024 and is projected to reach $5.2 billion by 2030, growing at a CAGR of 7.2%. The Asia-Pacific region, particularly China, India, and Japan, drives more than 45% of global demand.
2. Market Structure and Product Classification
A solar mounting system comprises two major functional layers: solar fasteners and solar accessories, each playing distinct roles:
Solar Fasteners
The mechanical core of the system, responsible for structural stability and load-bearing. Key products include:
- Solar Hanger Bolts: Fix the mounting system to the roof structures (wooden or metal purlins).
- Screws, Nuts, Washers: Ensure tight connections and prevent loosening.
- Anchor Bolts: Commonly used in ground-mounted PV systems.
Solar Accessories
Responsible for component support and panel fixation. Includes:
- Clamps (Middle/End Clamps): Secure PV modules.
- Rails: Support PV panels and distribute loads.
- Roof Hooks, Brackets, L-feet, Grounding Clips: Adapt to roof types and provide support or electrical continuity.
Note: Solar hanger bolts are a subset of solar fasteners, while clamps and rails are solar accessories at the same hierarchical level as fasteners. Correct classification ensures accurate supply chain analysis and product positioning.
3. Market Drivers
- Rapid Global PV Installation Growth
The IEA reports that global PV installations reached 420 GW in 2024, up 17% YoY, driving fastener demand. - Rooftop Distributed PV Systems
Distributed systems now account for nearly 40% of new installations in Europe, Japan, and the U.S. This drives demand for flexible and waterproof hanger bolts, particularly stainless steel 304/316 products. - Material and Manufacturing Upgrades
Stainless steel fasteners provide superior corrosion resistance and wind load performance. Advanced cold heading and precision machining enhance dimensional accuracy and mechanical properties. - Policy Support and Incentives
Government incentives in China, India, and the EU (e.g., the EU’s “REPowerEU”) are expected to add over 100 GW of PV capacity by 2025, boosting fastener demand.
4. Regional Market Analysis
| Region | 2024 Market Size | 2025–2030 Growth | Key Drivers |
|---|---|---|---|
| Asia-Pacific | $1.3B | 9.1% CAGR | Cost advantage, high installation volumes |
| Europe | $1.2B | 6.5% CAGR | Mature market, strict quality standards |
| North America | $0.9B | 7.2% CAGR | Incentives, commercial rooftop projects |
| Middle East & Africa | $0.4B | 8.4% CAGR | Ground-mounted projects, harsh climate |
| Latin America | $0.2B | 7.0% CAGR | Policy-driven growth, limited local manufacturing |
Conclusion: Asia-Pacific leads global production, while Europe and North America dominate high-end system applications.
5. Competitive Landscape
The solar fastener market is evolving from price competition to technology and solution-based competition. Industry players can be segmented into three layers:
1. Upstream: Raw Material and Coating Suppliers
- Aperam (Belgium), Outokumpu (Finland): Stainless steel 304/316
- MacDermid Enthone (USA): Corrosion-resistant coating solutions
Trend: ESG standards promote recycled and low-carbon materials.
2. Midstream: Fastener Manufacturers
- Würth Group (Germany), Hilti (Liechtenstein), Bossard (Switzerland): High-quality industrial fasteners
- OEM manufacturers in China, India, Vietnam: Cost-effective, high-volume production; account for 60%+ of global shipments
Trend: Moving from component manufacturing to system-based solutions, with innovation in corrosion resistance, waterproofing, and torque stability.
3. Downstream: Mounting System Brands and EPC Integrators
- K2 Systems, Mounting Systems, PMT (Germany): Modular installation solutions
- IronRidge (USA), Clenergy (Australia): Integrated rooftop mounting systems
- Local OEM/ODM in Asia supports international EPCs, especially for ground-mounted projects
Trend: Increased collaboration between fastener manufacturers and system brands to develop customized, high-efficiency solutions.
6. Future Outlook
By 2030, the global demand for solar fasteners is expected to exceed 18 billion units/year, with hanger bolts representing about 28% of total demand. Key future trends:
- Lightweight and optimized structural designs
- New materials such as duplex stainless steel and nickel alloys
- Full-life-cycle corrosion resistance and structural monitoring
7. Company Profile and Strategic Positioning
High-quality fasteners are more than mechanical components—they ensure system safety and longevity.
Suzhou Bilateral Import and Export Co., Ltd. specializes in solar mounting systems and fasteners, offering:
- Solar Mounting Systems: Roof and ground solutions
- Solar Hanger Bolts: High-strength, waterproof designs
- Clamps, Rails, Brackets, Screws, Nuts, Washers
With stable manufacturing, strict quality control, and international market experience, Bilateral provides reliable, standardized, and compatible solar mounting solutions for residential, commercial, and utility-scale PV projects.
🌐 Learn more: www.szbolts.com
MAIL: sales@szbilateral.com
